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==Key Stage 3==
===Meaning===
[[File:SpermCells.png|right|300px|thumb|A magnified image of '''sperm cells'''.]]A '''sperm cell''' is the male [[Sex CellGamete|sex cell]].
===Adaptations of Sperm Cells===
: '''Sperm Cells have a tail for swimming.
: '''Sperm cells''' have extra [[Mitochondrion|mitochondria]] to provide energy for swimming.
: '''Sperm cells''' have [[enzyme]]s on the head to get past the jelly coating.